Top 20 products relevant to Communication and Instant Messaging

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Open Source

WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

free

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.

Open Source free

Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.

Open Source

Brosix will improve the efficiency and decrease the expenses of your business by providing you all-in-one features package and many control functions. .

freemium $4.0 / Annually (Private Team Network, Full Control over user accounts)

Check fewer notifications, do more meaningful work. Twist is the team communication app for calmer, more organized, and more productive teamwork.

Secure messaging, anywhere.

Open Source

Application and Data, Collaboration, and Web and Video Conferencing.

Open Source

Open. Nonprofit. Cute ?

Open Source

Keybase will be a public directory of publicly auditable public keys.

The #1 CPaaS Solution for Small, Medium & Enterprises.

Open Source paid Free Trial

Irssi is a terminal based IRC client for UNIX systems.

Open Source

HexChat is a fork of XChat with bug fixes and new features.

Open Source

XMPP client designed with ease of use and security in mind.

Open Source

A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely.

Open Source

mIRC: Internet Relay Chat client.

Your own business messenger.

Empower Creation and Ensure Brand Consistency. Build and Share libraries of visual assets with your entire team — all from your desktop.

Open Source

WeeChat is a fast, light and extensible chat client.

Open Source

KVIrc is a free portable IRC client based on the excellent Qt GUI toolkit.

Open Source